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21 is a factor of 63 (21 * 3 = 63).
71 is a Prime number.
Since 71 has no common factors with 63, they must be multiplied together to find their least common multiple.
Thus, the least common multiple (LCM) of 21, 63 and 71 is 63 * 71 = 4473.
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Earn +20 ptsQ: What is the LCM of 21 77 and 63?
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What is the LCM of 21 and 147 and 63?
The LCM is 441.
What is the LCM of 21 and 147and 63?
For 147, 63, 21 the LCM is: 441
What is the LCM of 9and21?
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What is the LCM for 49 63 and 21?
lcm(49, 63, 21) = 441 49 = 7^2 63 = 3^2 x 7 21 = 3 x 7 lcm = 3^2 x 7^2 = 441
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